AquaGuard Injection & Waterproofing is a full service basement waterproofing company established in 2002. Providing service to Aurora, Newmarket, Richmond Hill and Markham from our Aurora site we are the premier experts in foundation crack repair and base crack sealing. These concrete crack repairs for poured concrete foundations are carried out from inside your basement, these injections are the cheapest basement leak maintenance you can find. Stressed about being fleeced by contractors? You can rely on us with your basement leak repairs - we are a member of the Better Business Bureau, be sure to review our feedback on Homestars and Google Maps confirming that we are trusted by homeowners all throughout the GTA.